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[CRYPTO] api: Added crypto_type support

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This patch adds the crypto_type structure which will be used for all new
crypto algorithm types, beginning with block ciphers.

The primary purpose of this abstraction is to allow different crypto_type
objects for crypto algorithms of the same type, in particular, there will
be a different crypto_type objects for asynchronous algorithms.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2006-08-22 00:06:54 +10:00
commit e853c3cfa8
4 changed files with 38 additions and 10 deletions
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8
include/crypto/algapi.h
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@ -15,6 +15,14 @@
#include <linux/crypto.h>
struct module;
struct seq_file;
struct crypto_type {
unsigned int (*ctxsize)(struct crypto_alg *alg);
int (*init)(struct crypto_tfm *tfm);
void (*exit)(struct crypto_tfm *tfm);
void (*show)(struct seq_file *m, struct crypto_alg *alg);
};
struct crypto_instance {
struct crypto_alg alg;

3
include/linux/crypto.h
View file

@ -90,6 +90,7 @@
struct scatterlist;
struct crypto_tfm;
struct crypto_type;
struct cipher_desc {
struct crypto_tfm *tfm;
@ -161,6 +162,8 @@ struct crypto_alg {
char cra_name[CRYPTO_MAX_ALG_NAME];
char cra_driver_name[CRYPTO_MAX_ALG_NAME];
const struct crypto_type *cra_type;
union {
struct cipher_alg cipher;
struct digest_alg digest;